Improvement in stump-extractors



A. J. ALLEY. Stump-Extractor.

No. 207,381. Patented Aug. 27,18

I) IIIIII INVESTOR WITNESSES:

11 @uzewi ATTORNEYS.

ALBERT J. ALLEY, OF FOND DU LAO, XVISGONSIN.

Specification forming part of Letters Patent No. 207,381, dated August27, 1878; application filed June 14, 1878.

To all whom it may concern:

Be it known that I, ALBERT J. ALLEY, of Fond du Lac, in the county ofFond du Lac and State of WVisconsin, have invented a new and usefulImprovement in Stump-Pullers, of which the following is a specification:

Figure 1 is a top view of my improved machine. Fig. 2 is a side view ofthe capstan and its attachments. Fig. 3 is a side view of thepulley-block. Fig. 4 is a detail vertical section taken through the line00 00, Fig. 1. Fig. 5 is a detail top view of the lower capstan-plate.

Similar letters of reference indicate corresponding parts.

The object of this invention is to furnish an improved stump-machine,grubber, or capstanpowerforpulling stumps and grubs, for movingbuildings, and for other similar uses, and which shall be simple inconstruction, convenient in use, eflective in operation,andcomparatively inexpensive in manufacture.

A is the capstan, whiehrevolves in holes in the plates B O. The lowerplate,0, is bolted to two runners, D, upon which the machine is movedfrom place to place.

The plates B G are secured to each other, securing the capstan A betweenthem, by three bolts, E. The capstan A is kept from longitudinalmovement between the plates 13 O by shoulders formed upon it, and whichbear against the inner sides of the said plates B O.

The capstan A is made of cast-iron and hollow, so that it may be made ofsuitable size without being too heavy, and in its upper end is formed across-mortise to receive the end of the sweep F, to the outer end ofwhich the horse is attached, and which is secured in place by a singlebolt, G, passing in through the closed upper end of the said capstan.

H is the lead-bar, the inner end of which is pivoted to the upper end ofthe capstan A by the bolt G, that secures the sweep F to the saidcapstan.

Upon the upper end of the capstan A are formed, or to it are attached,two stops, I, to prevent the lead-bar H from being drawn too close tothe sweep F, and at the same time to allow it to be swung from one sideto the other when the motion of the capstan A is reversed by changingthe horse from one side to the other of the sweep F.

The capstan A, between the plates B O, has cogs and ribs formed upon itfor the main chain J to fit upon, so that the said chain J cannot slipupon it. The chain J is kept in place upon the capstan A by two guidepulleys or rollers, K, placed upon the side bolts E, and by the curvedflanges L formed upon the inner side of the plates B 0, around the rearside of the capstan A, the edges of the said flanges being far enoughapart to allow the outer edges of the horizontal links of the chain J topass between them. The chain J also passes around a pulley, M, theblock, case, or clevis N of which is secured to a stump or post in anyconvenient position.

The pulley-block M N serves simply to keep the chain J extended andprevent the accumulation of slack at the side of the capstan. The mainchain J need not necessarily be endless, as shown in Fig. 1; but an openchain may be used, if desired. In this case one end of the chain J maybe secured to the capstanframe, and its other end attached to the end ofa lighter chain passed around a second guidepulley, and having its otherend hooked into the said main chain J, the object of the lighter chainbeing simply to take care of the slack of the main chain J or one end ofthe main chain may be attached to the stump or grub to be pulled, and alight chain attached to its other end, passed around a guide-pulley, andhaving its other end hooked into the said main chain, the object of thelight chain, in this case also, being simply to take care of the slackof the said main chain J. In the first case short chains are attached tothe stumps or grubs to be pulled, and then hooked into the main chain J.In the second case the pulley-block M N is attached to the stump or grubto be pulled.

The capstan is anchored to a stump or post by a short chain, 0, througha link or hook of which the rear bolt, E, passes.

When an open chain J is used, and the said chain has been drawn nearlyout of the capstan, the horse may be turned to the other side of thesweep F, the lead-bar H swung around to rest against the other stop I,and

the capstan turned in the other direction, thus ing with stump holdingmechanism by chain avoiding the trouble and labor of drawing the J, ofthe sweep F, lead-bar H, and stops I,

said chain back through the capstan. arranged as and for the purposespecified.

Having thus described my invention, I claim ALBERT J. ALLEY.

as new and desire to secure by Letters Pat- Witnesses:

ent GEO. P. KNoWLEs,

The combination, with the capstan, connect- 0. W. FLOWER.

